刘培坤,周振,张悦刊,杨兴华,倪芬
LIU Pei-kun,ZHOU Zhen,ZHANG Yue-kan,YANG Xing-hua,NI Fen

• 1:山东科技大学

摘要(Abstract)：

提出并设计了一种ф50mm双排料型旋流器,旨在解决传统旋流器底流夹细问题。利用流体分析软件FLUENT对单排料型和双排料型旋流器内部颗粒分布进行了数值模拟,并进行了对比试验研究。模拟分析发现双排料型旋流器在靠近底流口处,细颗粒体积分数明显降低,经底流口排出的细颗粒减少,有效降低了旋流器底流中细颗粒含量。采用石英砂进行实验室试验,结果表明ф50mm双排料型较单排料旋流器底流中-5μm颗粒含量降低了55.7%,陡度指数提高了64.7%,底流夹细明显降低,分离精度得到提高。
A ф50mm dual output type hydrocyclone is to be put forward and designed,aiming at solving the problem of single output type hydrocyclone underflow easy to clip fine particles,Using the fluid analysis software FLUENT to simulate the internal particles distribution and comparative analysis of the single output type and dual output type hydrocyclone,then,the related experiments have been carried out. Through simulation analysis,we find near the bottom of dual output cyclone's,fine particle volume fraction is decreased obviously,and it has been reduced by underflow discharge. Use Quartz sand laboratory test results show that the ф50mm dual output type hydrocyclone's-5μm particles has been reduced 55. 7%,The sharpness index has been increased64. 7%,So the underflow fine clipping phenomenon has been improved,the separation accuracy of the hyrocyclone is Increased.

关键词(KeyWords)： 双排料型旋流器;数值模拟;试验研究;分离精度
dual output hydrocyclone;numerical simulation;experimental research;separation accuracy

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(21276145);; 山东省科技发展计划资助项目(2014GSF116016);; 山东省自然科学基金项目(ZR2016EEM37)

作者(Author): 刘培坤,周振,张悦刊,杨兴华,倪芬
LIU Pei-kun,ZHOU Zhen,ZHANG Yue-kan,YANG Xing-hua,NI Fen

参考文献(References)：

• [1]刘培坤,姜兰越,杨兴华,等.抛物线型旋流器分离特性的数值模拟和试验研究[J].流体机械,2015,43(10):1-6.
• [2]王志斌,陈文梅,褚良银,等.旋流器流场的数值模拟及对流场特性的分析[J].四川大学学报,2006,38(3):59-64.
• [3]曹晓娟,顾伯勤.旋流器内空气柱形成与发展及其对分离的影响[J].流体机械,2009,37(1):28-33.
• [4]Sripriya R,Kaulaskar M D,Chakraborty,et al.Studies on the performance of a hydrocyclone and modeling for flow characterization in presence and absence of air core[J].Chemical Engineering Science,2007,62(22):6391-6402.
• [5]Dueck J,Pikushchak E,Minkov L,et al.Mechanism of hydrocyclone separation with water injection[J].Minerals Engineering.2010,23:289-294.
• [6]安连锁,杨阳,刘春阳,等.湿法烟气脱硫中石膏旋流器底流夹细的试验研究[J].动力工程学报,2014,34(3):236-240.
• [7]刘杨,王振波.水力旋流器分离效率影响因素的研究进展[J].流体机械,2016,44(2):39-42.
• [8]阳大清,周红桃.绕管式换热器壳侧流场流动与传热的数值模拟研究[J].压力容器,2015,32(11):40-46.
• [9]庞学诗.水力旋流器技术与应用[M].北京:中国石化出版社,2010:173-186.